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Statistical Assumptions MCQ

The P-P plot reveals that the data deviate substantially from normal.

We cannot infer anything about the normality of our data from this type of graph.

The P-P plot reveals that the data deviate mildly from normal.

The P-P plot reveals that the data are normal.

Answer

Correct Answer: The P-P plot reveals that the data are normal.

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To test whether the distribution of scores deviates from a comparable normal distribution.

To test for heterogeneity of variance

To test for homogeneity of variance

It is used to test for problematic outliers that could bias the results.

Answer

Correct Answer: To test whether the distribution of scores deviates from a comparable normal distribution.

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Reaction time

Temperature

Gender

Heart rate

Answer

Correct Answer: Gender

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Whether scores are measured at the interval level.

Whether scores are normally distributed.

Whether group variances are equal.

Whether group means differ.

Answer

Correct Answer: Whether scores are normally distributed.

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See if the z-score is bigger than 1.96 or smaller than –1.96

See if the skew is significant at p < .05.

Use the Kolmogorov–Smirnov test.

None of the options, because of the large sample size.

Answer

Correct Answer: None of the options, because of the large sample size.

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